fix grammar
add script for creating an AppDir
allow hammer script to automatically download Cg Toolkit

this prevents the user from having to download the toolkit by hand
and (if they forget to download) prevents later problems with ember
allow hammer to build a specific version of ember

useful for making release packages
Merge pull request #8 from olekw/master

Updates to hammer
Bump CEGUI to 0.7.9.
properly handle build environment of different architecture

i386 chroot builds on a 64-bit kernel were treated as amd64
prevent webember from permanently changing the $BUILDDIR variable

changing this variable may cause future issues in other hammer components
reverting the variable once webember compiles is cleaner
Merge pull request #9 from olekw/master

Tweaks to hammer script
Use CEGUI 0.8.
Use Ogre 1.9RC2
Detect lua version flags for tolua++ automatically